引力透镜精度测试 2010 (GREAT10) 挑战手册
宇宙学与河外天体物理
2011-12-01 v2 应用统计
摘要
引力透镜精度测试 2010 (GREAT10) 是一项面向天文图像分析算法开发的公开图像分析挑战赛。具体而言，该挑战旨在测量在可变卷积核、像素化与噪声存在情况下的图像变化畸变。这是面向天文学、计算机科学与统计学界的一系列挑战赛中的第二届，提供了一个结构化的环境，以便为计划中的天文巡天改进和测试方法。GREAT10 通过在挑战赛中引入变量场扩展了先前的工作。“星系挑战赛”涉及在已知卷积核存在的情况下，精确测量星系形状畸变，该畸变在局部由两个称为剪切(shear)的参数量化。关键是，卷积核与模拟的引力透镜形状畸变现在均随图像中的位置函数而变化，这与真实数据的情况一致。此外，我们引入了“恒星挑战赛”，涉及可变卷积核的重构，类似于典型天文观测中的情况。本文档为潜在参与者详细介绍了 GREAT10 挑战赛。持续更新的信息可从 http://www.greatchallenges.info 获取。
引用
@article{arxiv.1009.0779,
title = {Gravitational Lensing Accuracy Testing 2010 (GREAT10) Challenge Handbook},
author = {Thomas Kitching and Sreekumar Balan and Gary Bernstein and Matthias Bethge and Sarah Bridle and Frederic Courbin and Marc Gentile and Alan Heavens and Michael Hirsch and Reshad Hosseini and Alina Kiessling and Adam Amara and Donnacha Kirk and Konrad Kuijken and Rachel Mandelbaum and Baback Moghaddam and Guldariya Nurbaeva and Stephane Paulin-Henriksson and Anais Rassat and Jason Rhodes and Bernhard Schölkopf and John Shawe-Taylor and Mandeep Gill and Marina Shmakova and Andy Taylor and Malin Velander and Ludovic van Waerbeke and Dugan Witherick and David Wittman and Stefan Harmeling and Catherine Heymans and Richard Massey and Barnaby Rowe and Tim Schrabback and Lisa Voigt},
journal= {arXiv preprint arXiv:1009.0779},
year = {2011}
}
备注
Published in at http://dx.doi.org/10.1214/11-AOAS484 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)